HP 1606 HP B-series Fabric OS 6.4.1b Release Notes (5697-0886, March 2011-incl - Page 26

FCoE/CEE (2408 FCoE Converged Network Switch and DC SAN Director Switch 10/24 FCoE Blade)

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connections are removed. For more details, see the Brocade Fabric OS FCIP Administrator's Guide for 6.4.0. • Under traffic isolation (TI) zone configurations with failover enabled, non-TI zone traffic uses the dedicated path if no other E or VE paths through the fabric exist, or if the nondedicated paths are not the shortest paths. (A higher bandwidth tunnel with multiple circuits becomes the shortest path compared to a single tunnel.) • A VE/VEX tunnel and E/EX FC port cannot connect to the same domain at the same time. • The recommended Keep Alive Timeout must be the same on the tunnel and circuits on the switches on both sides of a link. • Latency measurements supported on FCIP tunnels (tested limit under Fabric OS 6.3.1): ◦ 1 GbE with 200 ms round-trip time and 1% loss ◦ 10 GbE with 100 ms round-trip time and 0.1% loss • The 1606 Extension SAN Switch supports optical and copper media types on GE0 and GE1 interfaces. Copper media is the default on GE0/GE1 ports and does not support autosense functions. • Inserting a 4 Gb SFP in GE ports of an HP StorageWorks 1606 Extension SAN Switch or DC SAN Director Multiprotocol Extension Blade can occasionally return the following message: ◦ Can't read serial data in sfpshow output. Remove and reinsert the SFP to resolve this issue. HP recommends that you perform sfpshow immediately after inserting the SFP and ensure it is seated properly before connecting the cables. • When running Fabric OS 6.4.x, if any of the following features are enabled in the FCIP configuration, a downgrade operation earlier than Fabric OS 6.4.0 is blocked until the features are removed from the FCIP config: ◦ IPv6 ◦ IPSec on the DC SAN Director Multiprotocol Extension blade ◦ DSCP Markings ◦ Advanced Compression options 2 and 3 on the DC SAN Director Multiprotocol Extension blade VEX ports • When configuring an FCIP Tunnel to use VLAN tagging on an HP StorageWorks 400 Multiprotocol Router or an HP StorageWorks B-series Multiprotocol Router Blade, a static ARP entry must be configured on the GE interface for the local gateway. Also a static ARP entry must be added in the local gateway for the multiprotocol router/router blade GE port. • FICON networks with FCIP tunnels do not support DPS (aptpolicy 3) configurations. This applies to both emulating and non-emulating FCIP tunnels. FCoE/CEE (2408 FCoE Converged Network Switch and DC SAN Director Switch 10/24 FCoE Blade) • The 2408 FCoE Converged Network Switch balances the FCoE bandwidth across all six port groups (each port group contains four ports). For you to get optimum performance for FCoE traffic, HP recommends that you distribute server CNA connections across these six port groups. • Hot-plugging a CP with a firmware level earlier than Fabric OS 6.3.0 into a DC SAN Backbone Director or DC04 SAN Director with an active DC SAN Director Switch 10/24 FCoE Blade results in the new standby CP not being HA synchronized. To avoid this scenario, upgrade the code on the standby CP directly to match the version on the active CP. • HP recommends that Converged Mode be enabled on all interfaces connected to CNAs. 26

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connections are removed. For more details, see the
Brocade Fabric OS FCIP Administrator's
Guide for 6.4.0
.
•
Under traffic isolation (TI) zone configurations with failover enabled, non-TI zone traffic uses
the dedicated path if no other E or VE paths through the fabric exist, or if the nondedicated
paths are not the shortest paths. (A higher bandwidth tunnel with multiple circuits becomes
the shortest path compared to a single tunnel.)
•
A VE/VEX tunnel and E/EX FC port cannot connect to the same domain at the same time.
•
The recommended Keep Alive Timeout must be the same on the tunnel and circuits on the
switches on both sides of a link.
•
Latency measurements supported on FCIP tunnels (tested limit under Fabric OS 6.3.1):
1 GbE with 200 ms round-trip time and 1% loss
◦
◦
10 GbE with 100 ms round-trip time and 0.1% loss
•
The 1606 Extension SAN Switch supports optical and copper media types on GE0 and GE1
interfaces. Copper media is the default on GE0/GE1 ports and does not support autosense
functions.
•
Inserting a 4 Gb SFP in GE ports of an HP StorageWorks 1606 Extension SAN Switch or DC
SAN Director Multiprotocol Extension Blade can occasionally return the following message:
◦
Can't read serial data
in
sfpshow
output.
Remove and reinsert the SFP to resolve this issue. HP recommends that you perform
sfpshow
immediately after inserting the SFP and ensure it is seated properly before
connecting the cables.
•
When running Fabric OS 6.4.x, if any of the following features are enabled in the FCIP
configuration, a downgrade operation earlier than Fabric OS 6.4.0 is blocked until the features
are removed from the FCIP config:
◦
IPv6
◦
IPSec on the DC SAN Director Multiprotocol Extension blade
◦
DSCP Markings
◦
Advanced Compression options 2 and 3 on the DC SAN Director Multiprotocol Extension
blade VEX ports
•
When configuring an FCIP Tunnel to use VLAN tagging on an HP StorageWorks 400
Multiprotocol Router or an HP StorageWorks B-series Multiprotocol Router Blade, a static ARP
entry must be configured on the GE interface for the local gateway. Also a static ARP entry
must be added in the local gateway for the multiprotocol router/router blade GE port.
•
FICON networks with FCIP tunnels do not support DPS (aptpolicy 3) configurations. This applies
to both emulating and non-emulating FCIP tunnels.
FCoE/CEE (2408 FCoE Converged Network Switch and DC SAN Director Switch
10/24 FCoE Blade)
•
The 2408 FCoE Converged Network Switch balances the FCoE bandwidth across all six port
groups (each port group contains four ports). For you to get optimum performance for FCoE
traffic, HP recommends that you distribute server CNA connections across these six port groups.
•
Hot-plugging a CP with a firmware level earlier than Fabric OS 6.3.0 into a DC SAN Backbone
Director or DC04 SAN Director with an active DC SAN Director Switch 10/24 FCoE Blade
results in the new standby CP not being HA synchronized. To avoid this scenario, upgrade
the code on the standby CP directly to match the version on the active CP.
•
HP recommends that Converged Mode be enabled on all interfaces connected to CNAs.
26